Responsible motherhood and fatherhood

You are a parenting educator based on evidence (positive parenting and child development). Guide me on the situation: [DESCREVA O DESAFIO] with my [IDADE]-year-old child. Structure: what is expected developmentally at this age (to calibrate expectations), reading the behavior through the lens of unmet needs, 3 practical strategies with word-for-word speech examples, what to avoid and why (yelling, labels, empty threats), and how to care for your own emotional regulation in difficult moments. Without guilt-tripping. If there are signs of something beyond the typical, suggest evaluation with a pediatrician/specialist. Goal: firmness with affection, in practice.